Bis (tetraalkylammonium) oxalate

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

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C07C 59147, C07C 59185

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active

054262186

ABSTRACT:
A poly(methylene oxalate) polymer [poly(oxy(1,2-dioxo-1,2-ethanediyl)oxymethylene)], a bis(tetrabutylammonium)oxalate salt, methods of synthesis thereof and methods of use. Poly(methylene oxalate) is insoluble in all common organic solvents, does not melt and is resistant to fire. Applications are as a light-weight material for use at high temperatures, e.g. as a structural material in aircraft and space vehicles, as a binder for brake systems, and as an insulator for microelectronic components.

REFERENCES:
patent: 4130639 (1978-12-01), Shalaby et al.
patent: 4141087 (1979-02-01), Shalaby et al.
patent: 4208511 (1980-06-01), Shalaby et al.
patent: 4210668 (1980-07-01), Hay
patent: 5008137 (1991-04-01), Nugent, Jr. et al.
patent: 5286728 (1994-02-01), Ferrini
Carothers et al., "Studies on Polymerization and Ring Formation. V. Glycol Esters of Oxalic Acid," J. Am. Chem. Soc., 52:3292-3300, 1930.
Carothers, Wallace H., "Linear Condensation `Superpolymers` Suitable for Production of Pliable, Strong, Elastic Fibers," Chem. Abstr., pp. 1937-1938.
Cimecioglu and East, "Poly(methylene Sebacate)*:Synthesis and Characterization," J. Polym. Sci. Polym. Chem. Ed., 30:313-321, 1992.
Cimecioglu et al., "The Synthesis and Characterization of Poly(methylene Terephthalate)," J. Polym. Sci. Polym. Chem. Ed., 26:2129-2139, 1988.
Coquard et al., "Bioresorbable Surgical Product," Chem. Abstr., vol. 84, Abstract No. 84:111702j, 1976.
East and Morshed, "The Preparation of Poly(methylene esters)," Polymer, 23:1555-1557, 1982.
East and Morshed, "High Molecular Weight Polyesters from Alkali Metal Dicarboxylates and .alpha.,.omega.-Dibromo Compounds," Polymer, 23:168-170, 1982.
Shelley, Suzanne, "Wanted: The Perfect Asbestos Substitute," Chemical Engineering, pp. 59 & 61, 1993.
Kvick and Liminga, "Structure of Methylene Oxalate," Acta Cryst., B36:734-736, 1980.
Dialog Search Report, 1992.
Cimecioglu and East, "Synthesis and Characterization of Linear Aliphatic Poly(methylene dicarboxylate)s from Caseium Dicarboxylates and Bromochloromethane," Makromol. Chem., Rapid Commun. 10:319-324, 1989.
Fariss, "Fifty Years of Safer Windshields," Chemtech, 32-43, 1993.
Hariharan and Pinkus, "Useful NMR Solvent Mixture for Polyesters: Trifluoroacetic Acid-d/chloroform-d," Polymer Bulletin 30:91-95, 1993.
Hariharan and Pinkus, ".sup.1 H and .sup.13 C NMR Solution Spectra and Molecular Weights by End Group Analysis of Relatively Insoluble Polyesters: Polyglycolide, Poly(ethylene terephthalate), Polyhydroxymethylbenzoate and Poly (p-xylene terephthalate), Using a Trifluoroacetic Acid-d/Chloroform-d Mixture," Polymer Preprints, 34(1):861-862, 1993.
Mararevich and Sushko, "Spectroscopic manifestation of properties of some ammonium salts," Search regarding: IR and Raman Spectra, 1993.
Nishikubo and Ozaki, "Synthesis of Polyesters by the Reaction of Dicarboxylic Acids with Alkyl Dihalides Using the DBU Method," Polymer Journal, 22(12):1043-1050, 1990.
"Crosslinked Vinyl Chloride Resin Foam Compositions," Seach regarding: Title components of highly resilient foams, 1993.
Economy and Cottis, "Hydroxybenzoic Acid Polymers," In: Encyclopedia of Polymer Science and Technology, vol. 15, pp. 292-306, 1971.
Mathias et al., "A Simple One-Step Synthesis of Unsaturated Copolyesters," J. Appl. Polym. Sci., 38:1037-1051, 1989.
Petiaud et al., "A .sup.1 H and .sup.13 C n.m.r. study of the products from direct polyesterification of ethylene glycol and terephthalic acid," Polymer, 33(15), 3155-3161, 1992.
Pinkus et al., "Polyesters with Aromatic Groups in the Backbone from Reactions of 3- and 4-Bromomethylbenzoic Acids with Triethylamine," J.M.S.--Pure Appl. Chem., A29(11), 1031-1047, 1992.
Pinkus and Subramanyam, "New High-Yield, One-Step Synthesis of Polyglycolide from Haloacetic Acids," Journal of Polymer Science: Polymer Chemistry Edition, 22:1131-1140, 1984.
Pham et al., In: Proton & Carbon NMR Spectra of Polymers, p. 197, CRC Press, Boca Raton, Fla., 1991.
International Search Report, mailed Aug. 16, 1994.

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